I have a 93 5.0 with a stock bottom end on it. I have a TFS stage one cam and im looking to go bigger. I dont have heads right now but plan on going with the roush 180s and they have a 1.90/1.60 valve size. the cam im looking at is from CHP and the #s on the cam are 222/232 with a .510/.534 lift and a lope seperation of 112. let me know what u guys think. i am spraying nitrous so i need a good nitrous cam.